Type-writing machine.



R.. E K L An W W G..

TYPE WRITING MACHINE. APPLIGATIQN FILED Nov. 26, 1902.

sz SHEETS-SHEET' 1.

N0 MODEL.

' nu: omas Pains cu., mrauno.. wps-Immun, pA c.V

NQ. 720,762. 'EATENTEE EEE. 17, 190s. c. W. WALKER. TYPE WRITINGMACHINE.'

APPLIUATION FILED NOV. 26, 1902.

2 SEHEN-SHEET 2.

Eo MODEL.

`NrrfED STATES' PATENT CHARLES WV. WALKER, OF BRIDGEPORT, CONNECTICUT,ASSIGNOR TO YOST WRITING MACHINE COMPANY, OF ILION, NE'W YORK, AlCORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 720,762, datedFebruary 17, 1903.

Original application filed December 2l, 1901, Serial No. 86.821. Dividedand this application iiled November 26,1902. Serial No. 132,890. (Nomodel.)

To @ZZ whom, t may concern: rotate together. Fig. 5 is a longitudinalsec- Be it known that I, CHARLES W. WALKER, tional view taken throughthe right-hand end 5o a citizen of the United States, and a resident ofthe platen and its-associated parts, the of Bridgeport, in the county ofFairfield and view illustrating the disposition of the parts 5 State ofConnecticut, have invented certain when the platen is free to be rotatedindenew and useful Improvements in Type -Writpendently of theline-spacing wheel. Fig. 6 ing Machines, of which the following is a isa detail end view of certain parts of the specification. platen lockingand releasing mechanism to My present invention relates to means for behereinafter more fullydescribed. Fig. 7

1o affording an ordinary line-spacing or a difteris a side view of thesame with parts broken ential feed of the platen, as may be desired,away, the view looking in the direction of the so that the platen may beintermittently roarrow in Eig. 6. Fig. 8 is alongitudinal sec- 6o tateda given distance at each operation in tional view of certain of theparts represented the usual manner by the line-spacing mechin Fig. 6,the section being taken on the line anism, or may be turned to any7desired eX- m n: of Fig. 6. Figs. 9, 1l, 12, 14., 15, and 16 tentforditterential spacing, so as to bring anp7 are det-ail perspectiveviews of portions of the space or line of the blank or sheet to theprintplaten releasing andlocking mechanism. Fig. 65 ing-line. l0 is adetail fragmentary longitudinal sec- A further object of my invention isto protional view of the platen releasing and lockvide a constructionwherein the relation being mechanism, the section being taken on tweenthe line-spacing wheel and platen is the line y y of Figz and looking inthe dichanged from time to time, so `that the imrection of the arrow insaid figure and with 70 pact of the types on the platen will hedisportions of the structure omitted. Fig. 13 is tributed over theentire surface of the platen an end view of the carriage looking in thediinstead of being received on given lines. rection of the arrow in Fig.l. Fig. 17 is a To the above ends my invention consists of detailperspective view ot' the linespacing the novel features of construction,arrangeratchet wheel or ring. 75 ments of parts, and combinations ofdevices The present case is a division of my applito be hereinafterdescribed, and particularly cation, Serial No. 86,821, filed December2l, 3o pointed out in the appended claims. 1901.

In the accompanying drawings, wherein A platen-frame l is connected to acarriage like reference characters indicate correspond- 2 and supports aplaten 3, that is adapted to 8o ing parts in the various views, Figure lis a rotate in bearings therein. The finger-wheel plan view of atype-writer carriage, showing l at the left-hand endof the platen has astem the devices of my invention applied' thereto. 5, which is journaledin the platen-frame and Fig. 2 is an enlarged detail longitudinalsecwhich projects into a sleeve 6, a set-screw '7 tional` View of theplaten`and the devices cobeing received within athreaded opening in 85operating therewith, the view illustrating the the sleeve and bearing atits inner end against positions of the parts when the platen and thestem to connect the stem and sleeve to- 40 line-spacing wheel are lockedto rotate together. The sleeve 6 constitutes an integral .get-her. Fig.3 is an enlarged detail fragmenportion of a platen-head 8, that issecured to tarytransverse sectional view taken through the core 9 of theplaten by screws 10. From 9o the line-spacing wheel and illustrating adisan examination of Fig. 2 it will be seen that position of the part-swhich permits the platen a headed rod 11 extends through the left-handto be rotated independently of the line-spacplaten-head and has its headseated in an opening wheel. Fig. LL is a like view ofthe same, ing l2 inthe sleeve 6 and is threaded at its inshowing a disposition of the partswhen the ner end 13 to engage a screw-threaded open- 95 line-spacingwheel and platen are locked to ingin an eXteriorly-threaded plug M,whichis screwed into the inner end of a housing 15. (Shown in detail inFig. 14.) This housing is formed with a circular circumferential flange16, provided with threaded holes 17 :for the reception of machine-screws18, (see Fig. 10,) which pass through openings in a ring 19 to unite thering and housing. The housing 15 has laterally-extending lugs 20,thatare seated in an aperture 21 in the core 9 of the platen, as indicatedin Figs. 2, 5, and 7, and thus prevent a rotation of the housing withrelation to the platen. The housing 15 is likewise aperturedtransversely at 22 for the reception of an engaging piece or lever23,which is shown in detail in Fig. 11. This engaging piece comprises asegmental end 24 and a laterally-eXtending lever-arm 25. Pivoted Withinthe recess 22 in the housing, on a pin 26 supported in the lugs 20, is abent lever 27, provided with a long arm 27X, that extends transverselyof the platen ,and a short arm that carries an antifriction-roller 28,that bears upon the free end of the lever-arm 25 of the engaging piece.The segmental end 24 of the engaging piece is seated within a circulariuternal groove 29, formed in the platen feed or line-spacing ring orwheel 30, which is shown in detail in Fig. 17. This ring bears at oneside against the face of the ring 19, which is secured to the housing,and the feed-ring 30 is adapted to rotate independently of the platenand of the housing. The feed or spacing ring is provided with teeth 31on the periphery thereof and with teeth 32 on its end face and ismaintained against displacement on the platen by a ring 33, (shown indetail in Fig. 16,) that is internally screw-threaded at 34 to enable itto coperate with the screwthreads 35 on the housing and to be supportedthereby. Openings 36 may be provided in the ring 33 to facilitate themounting thereof by means of a Spanner-wrench. Contained within thehousing is an expansion-spring 37, which bears at one end against thelong arm of the lever or engaging piece 27 and at its opposite endagainst the screw-threaded adjustable plug 14, by means of which thetension of the spring may be varied.

Projecting through the right-hand lingerwh eel 38 of the platen is ahand-operated plunger-rod 39, which passes through an opening 40 in theengaging piece and bears against the long arm 27X of the lever 27. Thisplungerrod is provided With a laterally-extending pin 41, that limitsthe outward movement thereof and affords a bearing for a spring 42, thatis contained within a recess 43 in the stem or hub 38ad of thefinger-Wheel and bears at its opposite end against an end Wall of therecess to normally maintain the plunger-rod in its outermost position,as shown in Fig. 2. From an examination of Fig. 4 it will be seen thatthe segmental portion 24 of the engaging piece 23 is seated within theinternal groove 29 of the line-space feed-ring 30 and bears by aleverage action against the side walls 44 of the groove which formfulcrum-points for the engaging piece when it is under tension of thespring 37, so that by the pressure of the lever 27 the platen is causedto rotate with the linespacing ring when the latter is turned. When,however, it is desired to rotate the platen independently of the feedwheel or ring, it is merely necessary to push inthe plunger-rod 39, andthus move the two-arm lever 27 against the tension of its spring, thusrelieving the friction clutch or lever 23 from pressure and permittingit to assume the position shown in Figs. 3 and 5, when the platen isfree to be rotated by either linger-wheel independently of the platenfeed-Wheel 30 for any desired distance in either direction. By reason ofthe employment of a leverage action and of the use of long lever-arms 25and 27 a powerful and efficient binding action of the segmental portion24 against the side walls of the groove is secured when the parts are intheir normal positions,and hence when the line-spacing ring is rotatedthe platen is caused to turn therewith. Owing to the powerful leverageobtained it is necessary to use only a comparatively Weak spring 37 tosecure a firm and efficient connection or engagement between the platenand the line-spacing ring and one which may be easily released by anendwise movement of the rod 39.

It will be understood that by merely unscrewing the rod 11 from thehousing the entire platen-releasing mechanism at the righthand end ofthe platen may be disconnected therefrom Without dismountingotherportions of the structure, provided the platen is detached from itssupporting-frame 1. lt will also be seen that the platen-releasemechanism may be put together or assembled apart from the platen andthen subsequently attached thereto simply by screwing in the rod l1, thehand-wheel 38 being attached after the platen is mounted in its frame.

The spring 42 may be dispensed with, inasmuch as the expansion-spring 37is sufficient to restore the plunger-rod 39 to its normal position; butthe spring 42 is provided, nevertheless,principally to prevent any shakeof the rod 39 in its bearings. The hub or hollow stem 38a of thehand-wheel 38 passes through the end bar 45 of the platen-frame and issecured at its inner shouldered end by a screw 46 in theoutwardly-projecting bosslike portion 47 of the housing.

Cooperating With the peripheral teeth 31 on the feed-wheel is a detentor pressure roller 48, which is mounted in bearings upon a spring 49,secured to the platen-frame at 50. A line-spacing pawl 51 coperates withthe teeth 32 on the side of the wheel and is actuated by a rock-shaft52, that turns in bearings 53 on the platen-frame. The forward end ofthe rock-shaft has secured thereto a finger-piece 54, by which therock-shaft may be turned to actuate the line-spacing pawl 51, and thuseffect a line-feed movement of the platen, as common heretofore in Yostmachines.

The above-described means by which the platen may be rotated withorindependently of the line-spacing Wheel 30 enable the operator to turnthe platen to any desired position for irregular spacing or to bring aportion of the paper to the printing-line, which could not be broughtthere by the regular line-spacing mechanism.

From the foregoing description it will be seen that the engaging pieceor lever 23 is loosely seated in the transverse opening 22 of thehousing and is not pivoted, but is mounted in such a manner that it notonly grips the line-spacing Wheel, but also fulcrums thereon, so thatgreat power is exerted by said lever on the line-spacing wheel toconnect it and the platen to rotate together. It will also be seen thatspring actuating means are provided for normally exerting a pressure onsaid lever to edect a connection between the line-spacing Wheel andplaten; that the said spring actuating means likewise apply pressure tothe rod or spindle 39 to move it in one direction or to the normalposition, and that the rod -or spindle may be moved by hand in anopposite direction and in opposition to said actuating means to af` It'ford a releasing action of the lever 23. will likewise be observed thatthe levers 27 and 23 constitute compound levers, one of which, 27, ispivoted to the platen and the other, 23, fulcrums on and Vgrips thelinespacing Wheel; that the spring 37 bears on the long arm of the lever27 and the power of the spring is applied through the short arm of thelever 27 to the long arm of the lever 23, and that by this constructiona iirm and powerful grip on the line-spacing Wheel is obtained and arigid connection normally established between the line-spacing Wheel andplaten. v

Various changes in construction may be made Without departing from thespirit of my invention. Thus,'for instance, While I have shown theengaging piece 24 and the oppo` sitely-disposed engaging Walls 44 of thelinespacing ring as having smooth orfricti'onal faces it should beunderstood that from certain aspects of my invention they may beroughened or serrated, though in practice it has been found that thefrict-ional faces provide a rigid binding of the parts.

What I claim as new, and desire to secure by Letters Patent, is

l. In a type-Writing machine, the combination of a platen, aline-spacing Wheel provided with oppositely-disposed engaging Walls, alever-like engaging piece that cooperates with the engaging Walls of thering and exerts binding pressure thereon by a leverage action and meansfor moving said engaging piece.

2. In a type-Writing machine, the combination of a platen, aline-spacing Wheel provided with opposite-ly-disposed engaging walls, alever-like engaging piece that cooperates with the engaging Walls of thering and'fulcrnms thereon and exerts binding pressure on both Wallsby aleverage action and means for moving said engaging piece.

3. In' a type-wri tin g machine, the combination of a platen, aline-spacing wheel provided with oppositely-di'sposed engaging Walls, a1ever-like engaging piece that coperates with the engaging Walls of thering and fulcrums thereon and exerts binding pressure on both Walls by aleverage action, spring-pressed means for normally maintaining theengaging piece in engagement with the engaging walls of said ring, andhand-operated means for moving said engaging piece against the tensionof its spring.

4. In a type-Writing machine, the combination of a platen, aline-spacing Wheel provided with oppositely-disposed engaging Wallshaving frictional or smooth faces, and a lever-like engaging piece thathas frictional engaging faces that cooperate with the fricticnal facesof the engaging walls and fulcrum thereon. 5. In a type-Writing machine,the combination of a platen, a platen feed-ring, an internal groove insaid ring, an engaging piece connected to said platen and arrangedwithin said groove andl binding against the side walls thereof by aleverage action to lock the said ring and platen to rotate together, aspringpressed actuating-lever bearing against the said engaging piece,and hand operated means for moving the actuating-lever against thetension of its spring to release the engaging piece so that the platenmay be rotated independently of the feed-ring.

` 6. In a type-Writing machine, the combination of a platen, a platenfeed-ring, an internal groove in said ring, an engaging piece whichextends into said groove, a housing which is removably seated Within andturns with saidv platen and has a transverse opening for the receptionof said engaging piece to cause the engaging piece and housing to rotatetogether, a spring-pressed actuatinglever Within the housing and bearingagainst the said engaging piece, and hand-operated means for moving theactuating-lever and relieving the engaging piecefrom pressure, so thatthe platen may be rotated independently of the feed-ring.

7. In a type-Writing machine, the combination of'a platen, a housingwhich has a trans- -verse opening therein and is provided withlaterally-extending lugs that are seated in an aperture in the platen tocause the. platen and housing to rotate together, a platen feedringwhich iscarried by said housing and is adapted to rotate independentlythereof, an internal groove in said ring, an engaging piece whichextends into the transverse openring in the housing and into theinternal groove in the said ring, a spring-pressed actuatinglever whichis pivoted Within the transverse opening in the housing and cooperateswith the engaging piece, hand-operated means for i-'inovin g saidactuating-lever against the ten# IOO IIO

sion of its spring, and a connecting-rod which extends through theplaten and holds the housing within the platen.

8. In a type-Writing machine, the combination of a platen, a platenfeed-ring with relation to which the platen is adapted to receive anindependent rotation, an internal engaging groove in said ring, and aspring-pressed locking-piece Within said groove and which is fulcrumedon and adapted to bind against the side Walls of said groove by aleverage action to lock the said ring and platen to rotate together.

9. In a type-Writing machine, the combination of a platen, a platenfeed-ring with relation to which the platen is adapted to receive anindependent rotation, an internal engaging groove in said ring, alocking-.piece Within said groove and fulcrumed on the walls thereof, alever-arm connected to said lockingpiece, a spring-pressed two-arm levercoperating With the lever-arm, and hand-operated means for moving saidtwo-arm lever against t-he tension of its spring.

10. In a type-Writing machine, the combination of a platen, a platenfeed-ring with relation to which the platen is adapted to receive anindependent rotation, an internal engaging groove in said ring, asegmental locking-piece Within said groove and fulcrumed on the Wallsthereof, a transverselyextending lever-arm connected to said segmentallocking-piece, a spring-pressed twoarm lever coperating with thelever-arm and a long arm of said lever extending transversely of theplaten, and a hand-operated plunger for moving said two-arm leveragainst the tension of its spring.

11. In a type-Writing machine, the combination of a platen, a platenfeed-ring, an internal engaging groove in said ring, a segmental iiatlocking-plate seated Within said groove and which is adapted to bindlaterally against the side walls of said groove by a leverage action tolock the said ring and platen to rotate together, atransversely-extending lever-arm connected to said segmentallocking-plate, a spring-pressed two-arm actuating-lever, anantifriction-roller carried by said two-arm actuating-lever and adaptedto bear against the said lever-arm, and a handoperatedlongitudinally-movable spindle for moving the two-arm actuating-leveragainst the tension of its spring to release the locking-plate.

12. In a type-Writing machine, the combination of a platen, a platenfeed-ring with relation to which the platen is adapted to receive anindependent rotation, an internal engaging groove in said ring,locking-plate seated within said groove and which is adapted to bindlaterally against the side Walls of said groove by a leverage action onsaid walls to lock the said ring and platen to rotate together, saidplate extending transversely substantially throughout the diameter ofthe platen, a spring-pressed two-arm actuatinglever coperating With thesaid plate and adapted to bear against it, and hand-operated means formoving the two-arm actuating-lever against the tension of its spring torelease the locking-plate.

13. In a type-Writing machine, the combination of a platen, a platenfeed-ring with relation to which the platen may receive an in dependentrotation, an internal engaging groove in said ring, a locking-pieceseated Within said groove and fulcrumed on and adapted to bind againstthe side Walls of said groove by a leverage action exerted thereon,spring-pressed means for normally maintaining the locking -piece inengagement, and hand-operated means for releasing said locking-piecefrom engagement.

14. Ina type-writing machine, the combination of a platen, a platenfeed-ring With relation to which the platen may receive an independentrotation, an internal engaging groove in said ring, a locking-pieceseated Within said groove and fulcrumed on and adapted to bind againstthe side Walls of said groove by a leverage action, spring-pressed meansfor normally maintaining the lockingpiece in engagement, means forvarying the tension of said spring-pressed means, and hand-operatedmeans for releasing said locking-piece from engagement.

15. In a type-Writing machine, the combination of a line-spacing Wheel,a platen adapted to be rotated independently thereof, and a lever thatfulcrums upon and also grips said line-spacing wheel and connects theWheel .and platen so that normally they may rotate together.

16. In a type-Writing machine, the combination of a line-spacing Wheel,a platen adapt- ICO ed to be rotated independently thereof, a lever thatfulcrums upon and also grips said line-spacing Wheel and connects thewheel and platen so that normally they may rotate together, andspring-actuated means for normally exerting a pressure on said lever.

17. In a type-Writing machine, the combination of a line-spacing Wheel,a platen adapted to be rotated independently thereof, a lever thatfulcrums upon and also grips said line-spacing Wheel and connects theWheel and platen so that normally they may rotate together,spring-actuated means for normally exerting a pressure on said lever,and handoperated means for relieving the pressure of saidspring-actuated means on the lever and therebyY release the platen to berotated independently of the line-spacing Wheel.

1S. In a type-Writing machine, the combination of a line-spacin g Wheel,a platen adapted to be rotated independently thereof, a lever thatfulcrums upon and also grips said linespacing Wheel, a hand-operated rodor spindle for releasing the gripping action of the lever, a spring, andmeans for applying the pressure of said spring to the lever and to saidIIO IIS

' of, a spring for moving said device in one direction, and ahand-operated rod or yspindle for moving the device in the oppositedirection and in opposition to said spring.

20. In a type-Writing machine, the combination of a line-spacing wheel,a platen adapted to be rotated independently thereof, and

compound levers for connecting the line-spacing Wheel and platen torotate together.

21. In a type-Writing machine, the combination of a line-spacing Wheel,a platen adapted to he rotated independently thereof, and

compound levers, one of which fulcrums on and grips the line-spacingWheel and connects Said Wheel and platen to rotate together.

22. In a type-Writing machine, the combination of a line-spacing Wheel,a platen adapt-V ed to be rotated independently thereof, springpressedcompound levers that are adapted to connect the line-spacing wheel andplaten together, and hand-operated means for alording a movement of saidlevers in opposition' to their spring-pressure.

23. In a type-Writing machine, the combi-V nation of a line-spacingWheel, a platen adapt-l ed to be rotated independently thereof,springpressed compound levers, one of which fulcrums on and -grips theline-spacing wheel and connects said Wheel and platen to rotatetogether,and hand-operated means for affording a movementof the saidlevers to effect a release of the platen from the line-spacing Wheel.

V24. In a type-Writing machine, the combination of a line-spacin gWheel, a platen and a kpair of levers coacting to connect the Wheel andthe platen together, one lever being piv- =otally attached to the platenand the other kloeing connected to the line-spacing wheel.

25. lIn a type-Writing machine, the combination of a line-spacingWheel,a platen, the spring-pressed bentV lever 27 connected to theplaten and the coacting lever 23 connected to Ythe line-spacingwheel. Y

Signed in the borough of Manhattam-ciy `of New York, in the count)T ofNew York and State of New-York, this 24th day of Novemher, A. D. 1902.

CHARLES W. WALKER.

IVitneHsses:

K. V. DONOVAN, E. M. WELLS.

